Nginx 简单的负载均衡配置示例

　http://www.s135.com/ 和 blog.s135.com 域名均指向 Nginx 所在的服务器IP。

　　用户访问http://www.s135.com/，将其负载均衡到192.168.1.2:80、192.168.1.3:80、192.168.1.4:80、192.168.1.5:80四台服务器。

　　用户访问http://blog.s135.com/，将其负载均衡到192.168.1.7服务器的8080、8081、8082端口。

　　以下为配置文件nginx.conf：

引用
user www www;

worker_processes 10;

#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

#pid logs/nginx.pid;

#最大文件描述符
worker_rlimit_nofile 51200;

events
{
use epoll;

worker_connections 51200;
}

http
{
include conf/mime.types;
default_type application/octet-stream;

keepalive_timeout 120;

tcp_nodelay on;

upstream http://www.s135.com/ {
server 192.168.1.2:80;
server 192.168.1.3:80;
server 192.168.1.4:80;
server 192.168.1.5:80;
}

upstream blog.s135.com {
server 192.168.1.7:8080;
server 192.168.1.7:8081;
server 192.168.1.7:8082;
}

server
{
listen 80;
server_name http://www.s135.com;/

location / {
proxy_pass http://www.s135.com;/
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

log_format www_s135_com '$remote_addr - $remote_user [$time_local] $request '
'"$status" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /data1/logs/www.log www_s135_com;
}

server
{
listen 80;
server_name blog.s135.com;

location / {
proxy_pass http://blog.s135.com;/
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

log_format blog_s135_com '$remote_addr - $remote_user [$time_local] $request '
'"$status" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /data1/logs/blog.log blog_s135_com;
}
}